Family name Kasoon (Kasoon 
) , in all the world, is a very rare surname. The family name Kasoon is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, and Thailand. Much more frequently, Kasoon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kasoon | South Korea, Malaysia, United States, Thailand |